The voice of people with Down ’ s syndrome : An EMG biofeedback study

The difference could lie in the size and shape of the larynx itself. It is known that individuals with Down’s syndrome may have physical abnormalities such as incomplete development of the sinus areas of the skull (Benda, 1969). However, the American researchers, Weinbreg and Zlatin (1970) and Michael and Carney (1964) have run tests on the fundamental frequencies (the base note at which the larynx vibrates) in individuals with Down’s syndrome. They found that the frequencies were normal or… CONTINUE READING